Planer for tractors



Mar. 3, 1925. 1,528,141

F.-E. ARNDT PLANER FOR TRACTORS Filed July 8, 192 4 2 Sheets-Sheet 1 Man 3, 1925. 1,528,141

F. E. ARNDT PLANER FOR TRACTORS I Filed July 8, 1924 2 Sheets-Sheet 2 Patented .Mar. 3, 1925.

* UNITED STATES.

PATENT OFFICE.

FRANKLIN E. ARNDT, OF GALION, OHIO, ASSIGNOREO THE G ALION IRON WORKS & MFG. 00., F QALION, OHIO, A CORP OR-ATION OF OHIO.

( PLANER FOR TRACTOBS. v

Application filed July 8, 1924. Serial No. 724,850.

To all whom it may. concern Be it known that I, FRANKLlN E. AuND'r, a citizen of the United States, residing at Galion, in the county of Crawford and State of Ohio, haveinvented certain new and useful Improvements in Planers for Tractors, of which the following is a specification.

This invention relates to road working tractors or tractors for alike purpose, and particularly to .a planing or scraping attachment designed to be used preferably in connection with the tractor which is illustrated, described and claimed in my pending application for Patent Serial #730,273 filed 011 the th day of August, 1924. r

The tractor whichis illustrated and described as above referred to is provided with a roller constituting the single front support for the tractor, this. roller being capable of being shifted in order to steer the tractor and the tractor being driven by two hind drive wheels operated from the motor. In

this form of tractor, which is relatively light and particularly suitable for road work, it is desirable to provide a scraper or planer attachment which will operate upon the road or other surface in advance of the roller and which will plane down elevations and carry the earth into the depressions of the roadway, the roller afterwards pressing down the loose earth and packing it.

The general object of the present iuven-. tion is to provide a planer attachn'ient of this character as above referred to. A further object is to provide a scraper of this character having means whereby it may be swung into any desired angular relation to the line of draft and locked in this I relation.

-A- still further object is to provide a planer mounted upon the forward end of the tractor, the-planing n.0ld board being adjustable-lto a number of different angles,v

. Another object is to provide means whereby the planer and the thrust bars which Other objects have to do with the. details of construction and. arrangement of parts as will appear more fully hereinafter.

My invention is illustrated in the accompanying drawings, wherein Figure 1 is a top plan view of a tractor mechanism with my improved planing'atn tachment applied thereto;

Figure 2 is a side elevation of the forward end of the tractor showing the planing attachment;

Figure 3 is a front elevation of the front roller and the yoke, the yoke being partly broken away and the draft beams being shown in section;

Figure 4 is a longitudinal sectional view through the circle bolt;

Figure 5 is a fragmentary perspective view of the scraper. v

In these drawings, I have illustrated-so much of a roller tracto1 as is necessary in order to illustrate the application of my planer attachment, and in these drawings 10 designates the longitudinal frame bars of the tractor frame. These bars are forwardly convergent and at their forward ends are connected by a gusset 11 and mounted by means of a suitable king pin upon a yoke 12 or front arched axle, as it might be termed. I have illustrated asking pin 13 as rotatably connectingthe yoke to the forward end of the tractor frame. vAny suitable mechanism may be used for this-purpose. Y

Mounted within the legs of the yoke is the front rol'lerlet. Mechanism is provided, as illustrated in the a plication which I before referred -to, whereby the yoke or forwardaxle may be rotated in order to guide the tractor, but this mechanism forms no part of my present invention and, therefore, I have not attempted to, illustrate it. The frame bars 10, as shown in Figure 1, at their rear ends are approximately horizontal and the forward ends of the frame bars extend up ward and inward toward each other, as before stated, and are connected by the gusset plate 11 and other parts which are not necessary to describe.

The beams .10 are preferably of channel iron, and slidingly engaged with'the horizontal portions of the beams 10, as will be later described, are the draft bars'or supporting bars for the planer, these draft bars being designated 15. These draft bars are preferably of angle iron, with the hori- 'zontal flange along the lower edge of the iron. Riveted to the draw bars rearward of the gusset plate 16 is a transverse bar 17, the outer ends of which are upwardly turned to form ears 18 for a purpose to be later stated, and riveted, bolted or otherwise attached to the under face of this cross brace or bar 17 are a pair of circle supports, designated generally 19. Each circle support has a seat 20 formed in that end which projects beyond the cross bar or brace 17 in which the circle 21 is adapted to be supported. This circle 21 is connected by a transverse bar or plate 22 which is pivoted to the gusset plate 18 by means of a pivot bolt or equivalent member There are two of these circle supports 19 and, therefore, it is obvious that the circle will be fully supported in any desired adjustment. The circle is angular in cross section to provide a depending flange, which flange is provided with a plurality of apertures 24. A spring-projected bolt 25, which is mounted upon the cross bar 17 is adapted to en- 'gage in any one of said apertures. The holt is projected by means of a spring 26 and operates within a barrel 2?". By manually retracting this spring-projected bolt, the circle 21 which supports the scraper or mold board may be readily shifted in either direction'.

Attached to the ends of the depending flange 28 of the circle 21 are outwardly projecting ears 29, and pivotally engaged with these ears is the mold board or scraper 30, this mold board or scraper being provided with the longitudinally extending angle iron 31. The mold board along its lower margin 50 is rearwardly deflected, and attached to this angle iron 31, as shown in Figure 2, and the scraper blade 32 in turn fits within the seat formed by this rearwardly deflected portion of the mold board. Bolted or otherwise connected to the mold board and the plate at the extreme ends thereof are the wings or loose dirt guards 34, these wlngs being approximately triangular in form and the lower the cars 29 so that the mold board may be tilted, and in order to hold it in its tilted position I pivot to the upper margin of the mold board the adjusting links 35, these links having a plurality of perforations,

and engaging against the ears 36 riveted tothe circle 21. A bolt or pin may be passed through these ears and thus the mold board will be held adjusted to any desired angle relative to the circle.

With the mechanism which I have described, it will be seen that the mold board may be adjusted to any desired angle to the line of draft through a certain range and that the inclination or tilt of the mold board may be adjusted. It is not necessary or desirable that means should be providedwhereby the mold board may be adjusted, as the machine moves along, but it is only necessary that the mold board may be adjusted from time to time as conditions of a special piece of work require, but it is necessary .to provide means whereby the planer, that is the mold board and other parts, may be raised or lowered and it is to this end that I mount the draft bars upon the side beams of the tractor for fore and aft movement. I

As a means of suspending these draft bars, I bolt or otherwise attach to the forward ends of the upwardly turned beams 10 the angular and diverging supporting irons 3 7. These supporting irons are braced to each other by means of a cross rod 38, the ends of which are passed through the supporting irons 37, the supporting irons bearing against shoulders to prevent their inward movement and being held from any outward movement by means of nuts 39. Chains 40 are engaged at their upper ends with U- shaped clevises 41 which embrace the forward ends of the supporting bars 37 and through which clevises the transverse bolt or twisted link 43 of such character as to provide what may be termed a keyhole-slot which permits the chain 40 to be adjusted by lifting the link from the lower portion of the slot into the enlarged upper portion, shifting the chain along, and then lowering the link again into place. Crossed chains H are connected, to the clevises 42 and cross each other and are connected to the twisted links 43 in the manner heretofore described so thatthese cross chains may be adjusted. By adjusting these chains, the draw bars may be supported at'a predetermined height below the supporting members 37, and as the rear ends of these draw bars are pivoted it is obvious that by taking up or letting out the chain 'the permanent height of the mold board may be adjusted. The cross chains, of course, tend to counteract any transverse strain which would tend td sweep the draft bars of the mold board from one side to the other.

For the purpose of supporting the rear ends of the draft bars, I provide the longitudinally extending guide bars 45, the forward ends of these guide bars being supported upon an angular casting 46 and the rear ends upon an angular casting 47, the guide bar being supported by means'of bolts 48 passing through this casting and through sleeves or other means for spacing the guidebar from the frame bars '10. R0- tatably mounted in the annular castings 46 and 47 is a worm shaft 48. The rear end of one of these worm shafts 48 is provided with the beveled gear wheel 49 which is adapted .to engage with a beveled gear wheel 50 mounted on a vertical shaft 51, in turn carrying an operating wheel 52. The opposite end of the worm shaft is provided ,with a beveled gear wheel ,53 .engaging a.

beveledgear wheel 54 mounted upon a transverse shaft 55. The opposite end of this shaft carries a beveled gear wheel54 which engages with a beveled gear wheel 56 on the worm shaft 48. .Thus both of these worms are operated simultaneously by means of the hand wheel 52..

57 which embrace the guides, and carried upon each slide 57 is an outwardly projecting nut 58 through which the corresponding screw or worm 48 asses. The rear extremity of each (newt a slightly angular extension-plate 59 which is bolted tothe nut 58 by means of a screw nut 60 so that the extension plate 59 is pivv oted' for movement in a vertical plane, thus .permitting the free upward and downward movement of the forward ends of the draft bars. I do'not wish to be limited to any particular construction for the nut 58. As the nut is formed with or attached to the slide 57, it isobvious that the nuts cannot turn but as the screws or worms are rotated the nuts will be forced forward or rearward, as the case may be. When the slides or nuts are moved forward, pressure will be transmittedthrough the'draw bars and the forward ends of the draw bars will swing up-- ward upon the links or chains. 40, and obviously as the slides are drawn rearward,

the forward ends of the draw bars will swing downward until, when these slides are. at their full rearmost position, the supporting chains 40 will be vertical. It will be seen that by a slight forward movement of these slides the mold board may be slightly adjusted up or down to meet any exigencies A of operation or to carry themold board so high up thatit will be entirely out .of operative position as, for instance, when it is not desired to plane the surface of a road in advance of the roller 14.

Mounted upon the guides 45 are the slides ar has applied thereto I In order to prevent the draw bars from striking against the lower ends of the yoke or arch 12, I-attach to the outer leg of each arch the vertically extending guard 61, the upper end of this guard being inwardly extended and then upwardly extended, as at 62, and this upwardly extending portion being bolted-at 63 to the vertical leg of the front axle or arch.

and lower ends the guard is supported in I that this planer acts as a leveler. The planer may be d sposed at any desiredangle to the Intermediate its upper line of draft, as before remarked, and the mold board may be set at any desired angle to a vertical plane. Theblade or mold board is adjusted into angular relation by pulling the lock plunger 28 out of an opening in the circle, then turning'the mold board 'to its desired position and permitting the bolt to be again projected by its spring, thus locking the moldboard in its adjusted position.

The blade is tilted forward or backward by means of the adjusting links 35 in an obv1ous manner. To operate on hard ground, the ti of the blade is tilted back, which will ecrease "the angle of the blade and cause the blade to dig deep, and for soft digging it is tilted forward so that it acts as a scraper. By using the chains 40 and the twisted links 43, it is possible toset one side of the mold board higher than the other so as to be used in beveling or crown'ng the roads. In order to raise the planer, the operator operates the hand wheel 52 so as to rotate thescrews 48 in one direction 'or the other and this moves the slides forward or backward. .When the slides are moved forward, the forward ends of the draft bars swingupon the-chains 43 which act in a way as'radius rods, the center of motion being the bolt or cross rod 38, and this lifts the blade off the ground. Upon the movingof' the slides rearward, the chains swing downward, permitting the blade to engage the ground. Thus it will be seen that not only is the blade adjustableby means of taking up the, chains themselves but by moving the slides backward or forward. Any lateral oscillation of the draw. bars will be taken by the guards 61. l I

It will be seen that with this construction .almostthe whole weight ofthc scraper and of the draw bars is supported by means of the extensions 37 which are bolted or otherits wise attached to the upwardly extending frame beams 10 and that this weight comes immediately over the front arch or axle and that this weight, therefore, is carried practically by the roller, which increases the weight of the roller, as should be the casein order to secure an effective action. The thrust. on the scraper is carried back by the draw bars or thrust bars to the slides and then is transmitted through theslides to the screws which are relatively heavy and supported at the ends in relatively strong and rigid brackets bolted to the relatively heavy side beams of the tractor.

lVhile I have illustrated certain details of construction, which I have found to be particularly effective, I do not wish to be limited to these details as it is obvious that ward movement of the thrust bars and thedownward movement of the scraper upon the rearward movement of the thrust bars;

2. The combination with a tractor, of thrust bars mounted upon the tractor for longitudinal movement and extending to a point in front thereof, a scraper blade carried by the thrust bars in advance of the tractor, said blade being mounted upon the thrust barsfor angular adjustment relative to a vertical plane and for pivotal adjustment in a horizontal plane, and means for causing the upward movement of the forward ends of the thrust bars as the thrust bars are shifted bodily forward and the downward movement of the thrust bars and blade as the thrust bars areshifted rearward.

3. The combination with a tractor having a road roller at its forward end, of supporting members mounted upon the tractor above the road roller and projecting out in front thereof, thrust bars pivotally mounted upon the tractor rearward of the road roller and mounted for longitudinal movement relative to the tractor, links connecting the forward ends of the supp'ortirig members with said thrust bars, a scraper blade mounted upon the circle for adjustment therewith, and manually operable means for shifting the rear ends of the thrust bars forward or rearward relative to the tractor.

a road roller at its forward end,- of supporta ing members mounted upon the tractor above the road roller and projecting out in 4 front thereof, thrust bars pivotally mounted upon the tractor rearward ofthe road roller and mounted for longitudinal movement relative to the tractor, links connecting the forward ends of the supporting members with said thrust bars, a scraper blade mounted upon the circle for adjustment therewith, manually operable means for shifting the rear ends of the thrust bars forward or rearward relative to the tractor and including worm screws mounted upon the tractor, nuts carried by the rear ends ofthe bars and engaging the worm screw, and manually operable means for simultaneously rotating said worm. s

5. The combination with a tractor, of a scraper attachment therefor comprising a pair of thrust bars disposed in each side of the tractor and projecting forward therefrom, a scraper carried by the forward ends of the thrust bars, supporting means mounted upon the forward end of the tractor above the level of the thrust bars, links flexibly connecting the forward ends of the thrust bars to said supporting means wherebyrthe forward ends of the thrust bars are swingingly connected to the supporting means, and manually operable means mounted upon the tractor for shifting the thrust bars longitudinally in either direction to thereby raise or lower the forward ends of the thrust bars.

6. The combination with a tractor, of a scraper attachment therefor comprising a pair of thrust bars disposed in each side of the tractor and projecting forward therefrom, a scraper carried by the forward ends of the thrust bars, supporting means mounted upon the forward end of the tractor above the level of the thrust bars, links flexibly connecting the forward ends of the thrust bars to said supporting means whereby the forward ends of the thrust bars are swingingly connected to the supporting means, manually operable means mounted upon the tractor for shifting the thrust bars longitudinally in either direction to thereby raise or lower the forward ends of the thrust bars, said means comprising worm screws mounted upon the tractor on each side there of and extending longitudinally thereof, nuts carried by the worm screws and operatively pivoted to the thrust bars, and manually operable mechanism for giving simultaneous movement to'the screws. t

7. The combination with a tractor, of thrust bars carried by the tractor and 'extending forward therefrom, a scraper mounted upon the forward ends of the thrust bars and adjustable into angular relation to the lineof draft, means carried by the thrust bars, and manually operable means carried by the tractor and adjustably engaging the thrust bars transmitting the thrust of the bars to the tractor and operable to cause the elevation or depression of the forward ends of both thrust bars.

8. The combination with a tractor hav-- ing a single forward road-engaging member, of thrust bars disposed on each side of the tractor and converging at their forward ends, a scraper pivotally mounted upon the and rearward, and manual means engaging the rear ends of the thrust bars with the tractor, said means beingoperable to causethe simultaneous movement of the rear ends of the thrust bars either forward or rearward. v

9. The combination with a tractor having a single forward road roller and an arch supporting the forward end of the frame. of the structure and engaging the axle of the road roller, laterally disposed thrust bar's operatively mounted at their rear ends upon the tractor frame, a scraper carried by the forward. ends of said thrust bars, means mounted upon the frame of the tractor-above the arch for flexibly supporting the thrust bars, and guards mounte upon the'downwardly extending legs of the arch in spaced relation thereto and having the guards disposed between the thrust bars and the legs of the thrust.

10. The combination with a tractor ineluding a road roller mounted uponthe forward end of the tractor, the tractor hav ing a frame extending upward to a point above the road roller and having an arch supported upon the forward end of the frame and arching over the road rollerand v carrying the axle therefor, of thrust bars disposed on each side of the tractor and converging at their forward ends, a circle mounted upon the forward ends of thethrust bars for oscillation in :a horizontal plane a scraper earned upon the circle,

supporting members mounted upon the 'for-,

ward ends of the tractor immediately above the arch and extending forward thereof,

links flexibly connectin the forward ends of said supporting mem ers with the thrust bars whereby. the forward ends of the thrust bars are swung from the supporting members, longitudinally extending screws mounted upon the framework of the tractor rearward ofthe road roller, manually operable means therefor connected to both of said screws to cause a simultaneous movement of angle iron.

11. The combination with a tractor ineluding a road roller mounted upon the ,forward end of the tractor, the tractor having a frame extending upward to a point above the road roller andhaving an arch supported uponthe forwardend of the frame. and arching over the road roller and carrying the axle therefor, of thrust bars disposed on each sideof the tractor and converging at their forward ends, a circle mounted upon the forward ends of the thrust bars for oscillation in a horizontal plane, a scraper carried upon the circle, supporting members mounted upon the forward ends of the tractor immediately above the arch-and extending forward thereof, chains connected to the forward ends of the thrust bars and extending upward and rearward and operatively connected to f the forward ends of said supporting members, means being provided for'taking up or slacking said chains, cross chains extending from the sup- I 'porting members laterally and downwardly and operatively connected to the thrust bars, means. mounted upon the tractor for pivotally and slidably supporting the rear ends of the thrust bars, and means foradjusting d the rear ends of the thrust bars longitudinally forward or rearward upon the tractor frame.

12. The combination with a tractor having a road roller at its forward end, of laterally disposed thrust bars, converging' at their forward ends in advance of the road roller, a gusset plate to which the forward ends of the thrust bars are connected, a semicircular angle iron disposed beneath the" forward ends of the thrust'bars, the free ends of the angle iron being connected by a transverse plate,-the transverse plate being pivotally connected to the gusset plate, the

angle iron having a downwardly ex-- tending flange formed at its middle with a .1

a, scraper carried plurality. of perforations,

a brace extendby the I semicircular iron,

ing acrossthe converging ends of the thrust bars rearward of the gusset plate, circlesupporting members mounted upon said,

12o a plurality of points to support it, and a brace and engaging the semi-circular iron at lock plunger mounted upon the brace and adapted to project through any one of the apertures in the depending flange of the In testimony whereof I aflix my signa- FRANKLIN E.

ture. 

